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Public Transit

Central Mobility Hub

The Central Mobility Hub would provide the San Diego region with a centrally located transit center that serves everyone going to or from the airport – whether they use the bus, Trolley, or commuter rail like the COASTER and Amtrak Pacific Surfliner.

The project is a fundamental objective of the 2021 Regional Plan, which includes the creation of Mobility Hubs around the region and calls for a fast transit connection to the airport. The Central Mobility Hub is anticipated to help increase transit ridership, reduce traffic, and advance climate action goals in addition to boosting economic development in the region by supporting new opportunities for housing and revitalized public space in Downtown San Diego.

SANDAG proposes to build two direct transit connections to the airport as part of the Central Mobility Hub project, one from a new transit center located in San Diego's Middletown neighborhood and the other from the existing Santa Fe Depot. These connections will link to the future Central Mobility Hub, which will be built at a location yet to be determined in Downtown San Diego.

The Port Transit Center at Middletown would be constructed at the current site of the Port of San Diego headquarters, located at the intersection of Pacific Highway and Sassafras Street, and would connect to the Middletown Trolley Station. A transit connection between the airport and Port Transit Center at Middletown would make travel to the airport more convenient for travelers coming from throughout the San Diego region including I-5 commuters, Trolley riders, and drivers using the adjacent airport car rental facility.

The Santa Fe Depot is located on Pacific Highway, near the North Embarcadero. The transit connection between the airport and Santa Fe Depot would provide a critical link to San Diego’s urban core and make travel to the airport more convenient for anyone who lives in, works in, or visits Downtown San Diego.


For decades, the San Diego region has explored ways to better connect the region to San Diego International Airport. Roads surrounding the airport are congested and transit access is limited. Additionally, air traffic at the airport is projected to increase with the development of a new and expanded Terminal 1, and the number of visitors to the area is expected to increase with the Port of San Diego’s plans for the waterfront.

In 2018, SANDAG convened the Airport Connectivity Subcommittee to study future transportation solutions for improved transit and road connectivity to the airport. The committee issued a report in 2019 with potential solutions to this issue including a Central Mobility Hub.

SANDAG moved forward with evaluating potential locations for a Central Mobility Hub in 2019, including a site at the Navy's Old Town Campus and a site near the Port’s headquarters.

In April 2021, SANDAG commenced the California Environmental Quality Act (CEQA) environmental review process for a Central Mobility Hub at the Navy's Old Town Campus with the issuance of a Notice of Preparation of an Environmental Impact Report. The Notice of Preparation kicked off a 30-day public comment period where the public was invited to comment on environmental issues to be studied and project alternatives.

In December 2021, following initial environmental analysis and after receiving significant public input about potential alternatives, SANDAG announced that Downtown San Diego and the Port's headquarters were also being considered as locations for the Central Mobility Hub. 

In April 2022, SANDAG revised the project to focus on a Central Mobility Hub located in Downtown San Diego transit connections to San Diego International Airport.

The extensive studies conducted since SANDAG began its review process have provided critical engineering and environmental information to fix the long-missing airport transit connection, including the best ways to position new transportation infrastructure around the airport runway, where to put required maintenance facilities, and how to link transit to the airport rental car facility.

Next Steps

To expedite the implementation of this project and ensure the San Diego region is well-positioned to be at the front of the line for federal infrastructure funding, SANDAG anticipates moving forward with the environmental review process for the airport connection component of the project in  2022. The environmental review for the Central Mobility Hub in Downtown San Diego will follow, after additional study.

Stay Informed

To stay up to date on the project, sign up to receive email updates (make sure to select “Central Mobility Hub” listed under Transit & Rail Projects). You can also visit our virtual engagement sites to learn more about the Central Mobility Hub project.

Virtual Engagement Site (English)
Virtual Engagement Site (Spanish)

For questions or comments, please contact the project team.
Phone: (888) 613-5687
Text: (844) 384-4264

Complete Corridor Planning

The Central Mobility Hub would bring together multiple modes of travel to improve traffic patterns, provide mobility options, reduce greenhouse gas emissions, and provide a vibrant mixed-use public space in Downtown San Diego.

While considering development of the Central Mobility Hub, SANDAG is also studying the surrounding roadways and modes of travel in the area of San Diego International Airport to achieve a holistic and balanced transportation network.

SANDAG will present the results of this study in a Comprehensive Multimodal Corridor Plan (CMCP), which will propose transportation solutions to support the Central Mobility Hub and automated transit connection to the airport.

For information on this effort visit